Hi Peter,
I did so:
http://toolserver.org/tiles/bicycle/12/2142/1389.png http://toolserver.org/~osm/styles/?zoom=12&lat=50.00859&lon=8.3186&a...
I just saw that and I'm already changing my website. Thanks a lot!
It seems your style is not rendered below zoomlevel 10. Is this intended behavior?
At the moment: yes.
I haven't spent much thought yet about what to render on which level. Maybe I just draw (Inter-)National Cycling Routes below 10. I'll start a thread over at OSM and put a feedback form online to see what 'the crowd' thinks.
Regards, Thomas